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| 4/9/2021 | Thomas County Speedway - Colby, KS Season Opener IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 4th | - | - | 11th |
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| 5/1/2021 | Sherman County Speedway - Goodland, KS Season Opener Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 3rd | - | - | 13th (DNF) |
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| 5/7/2021 | Thomas County Speedway - Colby, KS Fan Appreciation Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 5th | - | - | 4th |
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| 5/21/2021 | Thomas County Speedway - Colby, KS Friday Night Lights IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 8th (DNF) | - | - | 6th |
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| 5/22/2021 | Thomas County Speedway - Colby, KS K.A.R. Vintage Car Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 1st | - | - | 1st |
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| 6/5/2021 | Sherman County Speedway - Goodland, KS Summer Kick Off Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 1st | - | - | 1st |
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| 6/6/2021 | Sherman County Speedway - Goodland, KS Cowboy Clash 305 Sprints - Winged, Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 1st | - | - | 1st |
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| 6/11/2021 | Thomas County Speedway - Colby, KS Checkered Flag Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 2nd | - | - | 4th |
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| 6/19/2021 | Thomas County Speedway - Colby, KS 15th Annual Jeff Hartwell Memorial IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Rain Out |
| 7/9/2021 | Thomas County Speedway - Colby, KS Bracket Race Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 4th | - | - | 1st |
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| 7/21/2021 | 141 Speedway - Maribel, WI King of the Creek IV $10,000.00 to Win IMCA Stock Cars - Qualifying Sport Compact, IMCA Modified, IMCA Stock Car | Results | | Jeff Tubbs (IMCA Stock Car) | 2nd | - | - | 38th |
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| 7/22/2021 | 141 Speedway - Maribel, WI King of the Creek IV $10,000.00 to Win IMCA Stock Cars Stock Cars, IMCA Northern SportMod, IMCA Stock Car | Results | | Jeff Tubbs (IMCA Stock Car) | 8th | - | - | - |
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| 7/23/2021 | Marshalltown Speedway - Marshalltown, IA Rumours Bar & Grille Casey's Salute to Marshalltown Police Dwarf, Dirt Pro Trucks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 6th | - | - | 10th |
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| 8/7/2021 | Sherman County Speedway - Goodland, KS Fair Race with High Plains Late Model Series Dirt Late Models, Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 1st | - | - | 1st |
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| 8/8/2021 | Sherman County Speedway - Goodland, KS Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 2nd | - | - | 1st |
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| 8/13/2021 | Thomas County Speedway - Colby, KS Season Championship Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jeff Tubbs (IMCA Stock Car) | 4th | - | - | 20th |
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| 8/21/2021 | Sherman County Speedway - Goodland, KS Bill Gray/Season Championship Night Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 4th | - | - | 1st |
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| 9/8/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 3rd | - | 3rd | - |
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| 9/9/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Sportsmans, Midwest Modifieds, Vintage Full Body Stock Cars, IMCA Modified, IMCA Stock Car | Results | | Jeff Tubbs (Sportsmans) | - | - | - | - | | Jeff Tubbs (IMCA Stock Car) | 4th | - | DNS | - |
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| 9/10/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Generic 2, IMCA Modified, IMCA Stock Car | Results | | Jeff Tubbs (IMCA Stock Car) | 6th | - | DNS | - |
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| 9/24/2021 | Sherman County Speedway - Goodland, KS 32nd Annual Flatlanders Fall Classic Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | 1st | - | 1st | - |
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| 9/25/2021 | Sherman County Speedway - Goodland, KS 32nd Annual Flatlanders Fall Classic Sport Compact, Pure Stock, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jeff Tubbs (IMCA Stock Car) | - | - | - | 11th |
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